Period 5 gel electrophoresis and restriction enzymes questions 29-35

1. Restriction Enzymes are produced by (ANS: C )
A. Viral DNA
B. Skin Cells
C. Bacteria
D.Neurons

2.What determins the distance DNA fragments travel (ANS: D )
A. Shape
B Weight
C Temperature
D Size

3.What are restriction Enzymes (ANS: MOLECULAR SCISSORS C )
A. Proteins
B. Vitamins
C. Scissors
D.Minerals

4.Why do different DNA get cut into different sizes with the same Restriction Enzymes (ANS: A )
A. different DNA sequences
B. Length of time exposed to restriction enzymes
C. Number of enzymes
D.Size of DNA

5.In what direction do DNA fragments travel (ANS: B )
A. North
B. Towards Positive
C. Towards Negative
D. It is random


6. What helps conduct the electricity in electropheresis (ANS: C )
A. Cold Water
B. Pourous Gel
C. The Buffer solution
D. A Plastic Box

7. What is electropheresis used for (ANS: C )
A. Diagnosing diseases
B. Finding cures for cancer
c. Determining if different DNA samples are similar
d.Protection against viruses